/ Dictionary / Index N net tonnage: Meaning and Definition of Find definitions for: net' ton'nage Pronunciation: [key] the taxable gross tonnage of a merchant ship. Also called Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. net ton net-veined Related Content Daily Word Quiz: candid Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language